易于将乙烯插入到第 14 族元素-碳键中：HOMO-LUMO 能隙对反应性的影响。
Facile insertion of ethylene into a group 14 element-carbon bond: effects of the HOMO-LUMO energy gap on reactivity.
机构信息
Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, USA.
出版信息
Chem Commun (Camb). 2019 Jan 2;55(3):405-407. doi: 10.1039/c8cc08488b.
The diarylstannylenes, Sn(AriPr4)2 and Sn(AriPr6)2, (AriPr4 = C6H3-2,6-(C6H3-2,6-iPr2)2, AriPr6 = C6H3-2,6-(C6H2-2,4,6-iPr3)2), undergo a facile migratory insertion reaction with ethylene at 60 °C to afford the alkyl aryl stannylenes AriPr4SnCH2CH2AriPr4 and AriPr6SnCH2CH2AriPr6 which were characterized via1H, 13C and 119Sn NMR, UV-vis and IR spectroscopy, as well as by X-ray crystallography. Quantum mechanical calculations were performed, and two potential mechanisms were identified, with a migratory insertion reaction pathyway being energetically preferred.
二芳基二锡烷，Sn(AriPr4)2 和 Sn(AriPr6)2，（AriPr4 = C6H3-2,6-(C6H3-2,6-iPr2)2，AriPr6 = C6H3-2,6-(C6H2-2,4,6-iPr3)2），在 60°C 下与乙烯发生易位插入反应，生成烷基芳基锡烷 AriPr4SnCH2CH2AriPr4 和 AriPr6SnCH2CH2AriPr6，通过 1H、13C 和 119Sn NMR、UV-vis 和 IR 光谱以及 X 射线晶体学对其进行了表征。进行了量子力学计算，确定了两种可能的机制，其中迁移插入反应途径在能量上是有利的。
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